Kev wrote:
Not irrational at all. Just because something isn't called a
transmitter, doesn't mean it isn't one. Laptops, GPS receivers, many
radios, are all inadvertent transmitters. Laptops because of their
onboard computer clocks at maniacal rates. Many types of tuners also
produce interference frequencies.

Not to mention - how many people turn off their laptop's Bluetooth or
Wi-Fi when they're on an airplane?

.... Alan

--
Alan Gerber
PP-ASEL
gerber AT panix DOT com